nan
89087fc2e2
- Implemented the "O Image Relief Plane" Geometry Nodes group to create a fixed-base image relief using depth images and various parameters. - Created the "O Shadeless" shader node group to display color without scene lighting while preserving shadows and reflections. - Introduced a preview feature for node groups, allowing for interactive visualization of node arrangements in an HTML format. - Added a template HTML file for rendering node previews with customizable views and controls.
40 lines
1.5 KiB
Python
40 lines
1.5 KiB
Python
"""Socket endpoints and conservative curve footprints for placement and preview."""
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from .flow import socket_links
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def socket_position(socket, positions, sizes):
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node = socket.node
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x, y = positions[node]
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if node.bl_idname == "NodeReroute":
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return x + 8, y - 8
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return x + (sizes[node].width if socket.is_output else 0), y - sizes[node].sockets[socket]
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def link_endpoints(link, positions, sizes):
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start = socket_position(link.from_socket, positions, sizes)
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x, y = socket_position(link.to_socket, positions, sizes)
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if link.to_socket.is_multi_input:
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siblings = socket_links(link.to_socket)
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y -= (siblings.index(link) - (len(siblings) - 1) / 2) * 8
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return start, (x, y)
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def curve_footprint(start, end):
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"""Reserve eight convex hulls covering a horizontal-tangent Bezier curve."""
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x1, y1 = start
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x2, y2 = end
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bend = max(40, abs(x2 - x1) * 0.42)
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curves = [(start, (x1 + bend, y1), (x2 - bend, y2), end)]
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for _ in range(3):
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divided = []
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for points in curves:
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rows = [points]
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for _ in range(3):
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rows.append([((a[0] + b[0]) / 2, (a[1] + b[1]) / 2)
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for a, b in zip(rows[-1], rows[-1][1:])])
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divided.extend((tuple(row[0] for row in rows), tuple(row[-1] for row in reversed(rows))))
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curves = divided
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return [(min(x for x, _ in curve), max(x for x, _ in curve),
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max(y for _, y in curve), min(y for _, y in curve)) for curve in curves]
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